The Democrats won't replicate the turnout and percentages with blacks. Latinos, while they will still vote majority Dem easily, its not so assured if Republicans nominate Rubio or Carson. Either way, 70% of the white vote isn't possible, obviously. They will likely need around 65% for that to happen.
This. The Republicans will have a tough map/demographic problem until 1 of two things happen:
1) major economic downturn w/ a Democratic President
2) major economic improvement w/ a Republican President
1 seems a lot more likely than 2 at this juncture.
